Our customers never fail to amaze us.  We have recently seen a case where a custom used an Snmp Trap monitor to receive traps from a phone system, and attached the Desktop Notifier action to the monitor.  With this simple setup, anytime some specific traps were received, a desktop pop-up alert was shown on one or more Windows desktops.

The same scenario would work with Syslog alerts by substituting the Syslog Monitor instead of the Snmp Trap monitor.

Such a simple yet elegant solution